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Alex777 [14]
2 years ago
8

Question 7 Evaluate 2y + 3(y - 5) when y = 10 57 35

Mathematics
1 answer:
Ray Of Light [21]2 years ago
6 0

Answer:

Sustitute the y-values into the equation.

For y=10,

2(10) + 3 (10 - 5)

20 + 3(5)

20+15

35

For y=57,

2(57) + 3 (57 - 5)

114 + 156

270

For y=35

2(35) + 3 (35 - 5)

70 + 3(30)

70 + 90

160

:)

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First move the 4y to the right and the 1 to the left:

4y=5x-1

Then divide everything by 4:

y=5/4 x - 1/4

7 0
3 years ago
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marta [7]

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6 0
2 years ago
5) Paul invests $3,092 in a savings account
Mkey [24]

Answer:

R = 5% per year

Step-by-step explanation:

Solving for rate r as a decimal

r = n[(A/P)^1/nt - 1]

r = 4 × [(4,835.71/3,092.00)^1/(4)(9) - 1]

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Then convert r to R as a percentage

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Summary:

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3 0
2 years ago
Solve: let f(x)=2x-1 and g(x)=x^2-4. find g(f(x))
Stella [2.4K]
<h3>Answer:   g(f(x)) = 4x^2 - 4x - 3</h3>

Work Shown:

g(x) = x^2 - 4

g(f(x)) = ( f(x) )^2 - 4

g(f(x)) = ( 2x-1 )^2 - 4

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3 0
1 year ago
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